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Elena L [17]
3 years ago
10

In the arithmetic sequence {13,6,−1,−8,…}, what is the common difference?

Mathematics
1 answer:
Charra [1.4K]3 years ago
4 0

Answer:

-7

Step-by-step explanation:

hello :

the common difference is : -8-(-1)=-1-6=6-13=-7

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How much more intense is an 8. 5 earthquake than a 5. 5
AleksandrR [38]

Answer:

it is more intense by 3.0

Step-by-step explanation:

6 0
2 years ago
) the top and bottom margins of a poster are 4 cm and the side margins are each 5 cm. if the area of printed material on the pos
grin007 [14]
If x represents the width of the poster (including borders), the area of the finished poster can be written as
.. a = x*(390/(x -10) +8)
.. = 8x +390 +3900/(x -10)

Then the derivative with respect to x is
.. da/dx = 8 -3900/(x -10)^2
This is zero at the minimum area, where
.. x = √(3900/8) +10 ≈ 32.08 . . . . cm
The height is then
.. 390/(x -10) +8 = 8 +2√78 ≈ 25.66 . . . . cm

The poster with the smallest area is 32.08 cm wide by 25.66 cm tall.

_____
In these "border" problems, the smallest area will have the same overall dimension ratio that the borders have. Here, the poster is 10/8 = 1.25 times as wide as it is high.
8 0
3 years ago
Create a system of equations whose solution is <br> (−4, 7)<br> .
saveliy_v [14]
So 7 is greater I am not smart I am just trying to answers some question
5 0
2 years ago
You own an electronics store with a merchandise book value of $245,000. You conduct a physical inventory and find the value to b
Aleksandr-060686 [28]

0.22% shrinkage as a percent of sales.

To calculate shrinkage you subtract the physical inventory value from the book value.

245,000-237,000 = 800

The shrinkage was $800. To find the shrinkage as a percent of sales take the shrinkage value and divide it by the sales value to get shrinkage as a percentage of sales.

800 / 360,000 = 0.0022....

Multiply Decimal by 100 to get the percentage

100 * 0.0022.... = 0.22%

8 0
3 years ago
SUIVE
Marrrta [24]

Answer:

Step-by-step explanation:

t = tutoring and g = grocery store

t + g = 15......t = 15 - g

15t + 9g = 159

15(15 - g) + 9g = 159

225 - 15g + 9g = 159

-15g + 9g = 159 - 225

-6g = - 66

g = -66/-6

g = 11 <===== 11 hrs worked at the grocery store

t + g = 15

t + 11 = 15

t = 15 - 11

t = 4.....4 hrs tutoring

4 0
3 years ago
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